door opener problem. Hello, I have just installed the rebuild kit for my liftmaster opener, (yr 2000). I have adjusted the springs so the door will hang still four feet off the ground. I degreased and
...opener that was installed in 2000 or so. It had recently begun overdriving both closing and opening (so button had to be pressed once to stop it). I tried adjusting the raise and lower screws and got ...
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